Dab tsi yog qhov zoo tshaj plaws roj rau tus vuam vuam me hlau?

Tig vuam (tungsten inert roj vuam) yog renowned rau nws precision hauv koom nrog cov me me hlau, cov khoom siv dav siv hauv kev tsim kho, thiab tshuab. Kev xaiv ntawm kev thaiv cov roj ncaj ncaj weld zoo -}}}}}}} Pab Arc Stability, thiab tag nrho kev sib koom tes muaj zog. Tom qab kaum tawm ntawm kev lag luam kev xyaum thiab kev siv tau, ntshiab argon (ar) tau tshwm sim raws li cov roj av uas zoo tshaj plaws, versatility, thiab lwm yam roj ntsha kom phim.
Vim li cas Argon sawv tawm: Cov tseem ceeb rau cov hlau me
Cov hlau me me (qis {- cov roj carbon steel nrog 0.0.25% card ntawm weldopherion oxygen thiab nitrogen tsis muaj kev hloov pauv nws cov tshuaj lom neeg. Argon, ib qho roj inert, ua tau raws li qhov kev xav tau ntawm peb cov khoom tseem ceeb:
Inert tiv thaiv oxidation
Oxygen nyob rau hauv huab cua reacts nrog molten me hlau los tsim hlau oxide los tsim cov hlau oxide (feo), muaj cov pob zeb ua kom tsis muaj zog uas tsis muaj zog. Argon tsim ib qho kev cuam tshuam nrog ib lub arc thiab reloll pas dej, tiv thaiv cov pa thiab nitrogen los ntawm kev nkag mus. Tsis zoo li cov pa roj hmab zoo li cov pa roj (uas cuam tshuam rau hauv oxygen ntawm kev kub siab), olon Qhov no yog qhov tseem ceeb rau cov me me hlau, uas tsis muaj cov khoom siv alloying (piv txwv li, chromium hauv tus kheej- kho los ntawm oxidation.
Ruaj khov arc
Argon lub siab ionization Muaj peev xwm ruaj khov rau cov stigilizes tig arc, txawm tias ntawm cov hlau tsawg rau cov hlau nplaum nyias (piv txwv li, 16-20 chav saib xyuas). Ib qho ruaj khov arc ua kom muaj zog sib xws, ua rau cov ris tsho weld hlaws dai nrog txoj kab fusion du. Qhov no yog qhov tshwj xeeb tshaj yog qhov tshwj xeeb tshaj rau cov qauv zoo nkauj lossis cov txheej txheem sib txawv tuaj yeem ua rau muaj kev sib cav sib ceg
Sib sau nrog txhua qhov tuab tuab
Mild Steel Tig Vuam spans nyias cov ntawv nyias nyias (piv txwv li, 0.03 nti) thiab tuab daim phiaj (txog li 1 nti lossis ntau dua). Argon ua haujlwm thoob plaws qhov no: nws cov thermal tsawg dua ua rau cov ntaub ntawv nyias nyias, tsis txhob muaj hlawv cov ntaub ntawv nyias nyias
Vim li cas lwm cov roj av poob luv luv
Thaum cov kev xaiv zoo li argon {{helium helium blesss lossis nitrogen tau sim, lawv ua tsis tiav rau cov neeg ua txhaum cai rau me me Hlau Vuam Vuam:
Argon - helium blends: tsis tseem ceeb rau cov hlau me
Helium (nws) nce Arc tshav kub, uas tuaj yeem tau txiaj ntsig tuab txhuas lossis tooj liab. Txawm li cas los xij, cov hlau me me tsis tas yuav muaj cua sov ntxiv {}} Helium cov hlau loj heev, ua rau muaj kev sib daj sib luag ntawm cov cua sov- bein cuam tshuam thaj chaw (Haz). Ib qho ntxiv, Helium kim dua Arton thiab txo lub qhov tsis ruaj khov ntawm qhov qis qis, ua kom nws tsis muaj hlau rau feem ntau cov ntaub ntawv hlau tsawg.
Nitrogen: qhov hnoos qeev, tsis yog daim hlau thaiv
Nitrogen reacts nrog Molten Moob Muam los tsim cov hlau nitrides, nyuaj thiab brittle concound uas ua rau vib zoo li tawg. Txawm tias cov nyiaj me me ntawm cov pa roj (los ntawm kev thaiv cov roj av) tuaj yeem txo qis ntawm cov qauv hlau me me, piv txwv li, hauv kev saib xyuas choj lossis tshuab thav duab).
CO₂: Kev puas tsuaj rau cov txheej txheem TIG
Raws li cov roj ua pa, co sib cais rau hauv cov pa thiab cov pa roj carbon monoxide hauv cov arc, paug ob lub tungsten electrode thiab reld pas dej. Cov pa oxygen oxidizes ntawm electrode, ua rau arc sputtering, thaum cov pa roj carbon pickup los ntawm kev siv hlau roj carbon monoxide {}} Weld cracking. Kev koom yog tsis siv rau Tig vuam, txawm tias cov hlau me.
Tshwj xeeb sib xyaw: thaum yuav tsum xav txog argon nrog additives
Hauv cov xwm txheej tshwj xeeb, Argon nrog cov roj me me ntawm lwm cov roj av tuaj yeem txhim kho kev ua tau zoo, txawm tias muaj neeg ntshiab argon tseem yog lub neej ntawd:
Argon + 2}} - 5% hydrogen: rau tuab lossis siab- ceev vuam
Hydrogen (H₂) added to argon increases arc temperature slightly, improving penetration in thick mild steel (1/2 inch or more) and speeding up travel speeds. Nws tseem yuav txo cov tungsten Electrode lub neej nyob rau hauv high vol ntau lawm (piv txwv, automated raj vuam). Txawm li cas los xij, hydrogen qib siab tshaj 5% kev pheej hmoo} ua rau qhov kev sib txuas no haum rau kom haum rau qhov twg ceev tau.
Argon + 0.5 - 2% Oxygen: Rau hauv paus hla hauv kav
Oxygen (O₂) hauv cov koob tshuaj me me txhim kho "ntub dej" ntawm cov pas dej Weld, pab nws ntws mus rau hauv cov hauv paus nruj hauv av vuam. Qhov no ua kom muaj kev fusion tag nrho hauv cov pob qij txha tseem ceeb (piv txwv li, dej lossis roj pipelines). Cov ntsiab lus oxygen yog tsawg txaus kom tsis txhob muaj Oxidation Oxidation, tab sis qhov kev sib xyaw no yuav tsum ua tib zoo tswj {}} cov pa oxeen ua rau porosity. Nws tsis tshua muaj xav tau rau cov vuam me me, uas muaj neeg dawb huv Argon Seem Suffices.
Kev coj ua zoo tshaj plaws rau kev siv Argon hauv me me Hlau Tig Vuam
Txhawm rau ua kom tiav Argon cov hauj lwm zoo, ua raws cov lus qhia no:
• Ntog ntws ntsuas ntsuas: Siv 15-20 cfh (cubic feet ib teev) rau cov hlau me me (txog li 1/4 nti) thiab 20-25 cfh rau cov tuab tuab. Tsawg dhau ib qho ntws tawm ntawm qhov chaw weld raug rau huab cua; Cov dej khib nyiab ntau dhau thiab tsim cov cua hlob uas rub tawm hauv cov paug tsis huv.
• Roj Purity: xaiv 99.99% Cov Ntshiv Ntshiab Agon kom tsis txhob muaj oxygen lossis nitrogen. Txawm tias 0.1% impurities tuaj yeem ua rau oxide inclusions nyob rau hauv cov ntawv tseem ceeb (piv txwv li, qauv nkhaus).
• Sib txuam loj me me: khub argon nrog lub nozzle hla ntawm 3/8-5 / 8 ntiv. Ib qho loj dua (rau cov hlau tuab) faib cov roj tuab) hla cov roj av dav hlau, thaum nyias muaj roj av (rau cov roj nyias nyias) tsom xam cov pa kom tsis txhob ua pa.
• Kev tswj av ntub: Khaws argon kheej kheej rau thaj chaw qhuav. Kev ya raws hauv cov roj roj tuaj yeem ua kom haum rau hauv lub pas dej weld, ua rau hydrogen -} indive porosity. Siv cov dej hauv kab hauv kab hauv kev ua si sab nraum zoov lossis siab - av noo ib puag ncig.
Cov Qauv Thov: Qhov twg Argon xa cov txiaj ntsig tau
Argon cov versatility ua rau nws zoo tagnrho rau tag nrho cov hlau me me Tig welding scenarios:
• Cov ntawv me me fabrication: Vuam 18 {{{{{{{}
• Cov qauv vuam: Koom nrog cov hlau me me - rawv paug yuav tau argon's} tus qauv kev tiv thaiv kom tau raws li cov qauv D1.1 rau lub zog tensile thiab ductility.
• Kho cov haujlwm: Kho cov kab nrib pleb hauv cov hlau tshuab me steel (piv txwv li, cov thawv wearmon kom ntseeg tau tias lub hauv paus weld, restoring thawj lub zog.
• Zoo nkauj vuam: rau pom cov hlau me me (piv txwv li, sib cav sib ceg
Xaus: Argon - Cov Qauv Kub Rau Me Hlau Vuam Vuam
Rau Tig vuam me Hlau, ntshiab argon yog tsis tau nyob rau hauv nws lub peev xwm tiv thaiv lub weld cheeb tsam, ruaj khov arc, thiab tsim cov pob qij txha muaj zog, huv si. Nws ua haujlwm thoob plaws txhua cov ntaub ntawv thicknesses, zam kev paug, thiab txhawb nqa ob phau ntawv qhia thiab cov txheej txheem lwm yam. Thaum cov tshwj xeeb tshwj xeeb muaj Niche siv, Argon tseem yog thawj qhov kev xaiv rau cov ntaub ntawv, engetters ua ntej ua ntej zoo thiab ntseeg tau.
Los ntawm kev siv Ntshiab Argon, Tig Welders kom ntseeg tau tias cov kev ua tau zoo hlau ua tiav kev ua tau zoo, lossis ua kom zoo nkauj {